Web/API/WebGL2RenderingContext/getUniformBlockIndex
This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.
The WebGL2RenderingContext.getUniformBlockIndex()
method of the WebGL 2 API retrieves the index of a uniform block within a WebGLProgram
.
Syntax
GLuint gl.getUniformBlockIndex(program, uniformBlockName);
Parameters
program
- A
WebGLProgram
containing the uniform block. uniformName
- A
DOMString
specifying the name of the uniform block to whose index to retrieve.
Return value
A GLuint
indicating the uniform block index.
Examples
// Assuming a shader with the following declaration:
// uniform UBOData {
// mat4 foo;
// } instanceName;
// use the block name, not the instance name:
var blockIndex = gl.getUniformBlockIndex(program, 'UBOData');
Specifications
Specification | Status | Comment |
WebGL 2.0The definition of 'getUniformBlockIndex' in that specification. | Editor's Draft | Initial definition for WebGL. |
OpenGL ES 3.0The definition of 'glGetUniformBlockIndex' in that specification. | Standard | Man page of the (similar) OpenGL API. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
getUniformBlockIndex
|
Chrome
Full support 56 |
Edge
Full support 79 |
Firefox
Full support 51 |
IE
No support No |
Opera
Full support 43 |
Safari
No support No |
WebView Android
Full support 58 |
Chrome Android
Full support 58 |
Firefox Android
Full support 51 |
Opera Android
Full support 43 |
Safari iOS
No support No |
Samsung Internet Android
Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support
See also
WebGL2RenderingContext.getUniformBlockIndex() by Mozilla Contributors is licensed under CC-BY-SA 2.5.